单词	sealed-beam
释义	sealed-beam adjective ˈsēl(d)-ˈbēm  : being an electric lamp with a prefocused reflector and lens sealed in the lamp vacuum Word History First Known Use 1939, in the meaning defined above
随便看	Astrophyton astrophytons astropoga astropogons astrosclereid astrose astrospheres astrostereogram Astroturf astroturfing astroturfs astrut astucious astuciously astucity astur asturian asturians Asturias astute astutely astuteness astutenesses astuter astutest

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